<TABLE> <S> <C>

<PAGE>
<ARTICLE> 5
<LEGEND>
This schedule contains summary financial information extracted from the
consolidated balance sheets and consolidated statements of income at December
31, 1996 and 1997 and the balance sheets and statements of income at December
31, 1996 and 1997 of the Company's 1997 Annual Report to Stockholders and is
qualified in its entirety by reference to such financial statements.
</LEGEND>
       
<S>                             <C>                     <C>
<PERIOD-TYPE>                   YEAR                   YEAR
<FISCAL-YEAR-END>                          DEC-31-1996             DEC-31-1997
<PERIOD-END>                               DEC-31-1996             DEC-31-1997
<CASH>                                         224,539               6,895,619
<SECURITIES>                                   130,692                 108,287
<RECEIVABLES>                                   88,763               1,643,503
<ALLOWANCES>                                         0                       0
<INVENTORY>                                     96,002               2,910,220
<CURRENT-ASSETS>                               761,668              11,632,914
<PP&E>                                       3,514,500              14,488,496
<DEPRECIATION>                                 (6,428)               (680,310)
<TOTAL-ASSETS>                               5,374,116              27,490,098
<CURRENT-LIABILITIES>                        3,660,325               7,907,543
<BONDS>                                              0              11,280,489
<PREFERRED-MANDATORY>                                0                       0
<PREFERRED>                                          0                       0
<COMMON>                                        20,974                  30,058
<OTHER-SE>                                   1,692,817               8,272,008
<TOTAL-LIABILITY-AND-EQUITY>                 5,374,116              27,490,098
<SALES>                                        232,824               8,020,304
<TOTAL-REVENUES>                               510,779                 435,004
<CGS>                                        (383,164)             (6,992,829)
<TOTAL-COSTS>                              (4,199,383)             (2,045,767)
<OTHER-EXPENSES>                                     0                       0
<LOSS-PROVISION>                                     0                       0
<INTEREST-EXPENSE>                            (32,730)               (820,707)
<INCOME-PRETAX>                              3,801,674             (1,434,984)
<INCOME-TAX>                                  (52,850)               (407,900)
<INCOME-CONTINUING>                        (3,748,824)             (1,027,084)
<DISCONTINUED>                                       0                       0
<EXTRAORDINARY>                                      0                       0
<CHANGES>                                            0                       0
<NET-INCOME>                               (3,748,824)             (1,027,084)
<EPS-PRIMARY>                                  (0.267)                 (0.039)
<EPS-DILUTED>                                  (0.208)                 (0.034)
        

</TABLE>